Building construction



Aug' 25, 1931- s. H. BARROWS 1,820,041

BUILDING CONSTRUCTION Filed Jan. 27, 1927 BY J1 .llave Patented A". 2s,mi

STANLEY H. BARROWS, OF CHICAGO, ILLINOIS, T0 CALIFORNIA CHEMICALCORPORATION,

0F ILLINOIS ASSIGNOR, BY MESNE ASSIGNMENTS, OF CHICAGO, ILLINOIS, ACORPORATION BUILDING CONSTRUCTION .Application led January 27, 1927.Serial No. 163,915.

Where building elements of wood or artificial stone are to be secured toconcrete, steel, etc., it is customary to employ metallic fasteningmeans. For instance, for wood flooring over reenforced concrete, metalclips are placed in the concrete at spaced intervals and the concrete isallowed to set. When the concrete has hardened, the clips are alladjusted to proper level and the sleepers are placed thereon, so that asupport may be provided as a series of strips to which the floor boardscan be in turn nailed. There are also various other Ways of attachingsleepers, such as drillinO the concrete slab, plugging and Wiring.enerally before laying the wooden floor, the spaces between the stripsare lled with cinders or concrete.

In accordance with the present invention, the necessity for specialmetal fittings or connections is done away with, and wood or compositionmembers may be secured to each other or to concrete or stone or steelelements as desired.

To the` accomplishment of the foregoing and related ends, the invention,then, consists of the features hereinafter fully described, andparticularly pointed out in the claims, the following description andthe annexed drawings setting forth in detail but few of the various waysin which the principle of the invention may be employed.l

In said annexed drawings:-

Fig. 1 represents a sectional detail of one embodiment of the invention,and Figs. 2, 3, 4, 5, 6, 7 and 8 are similar views of other forms.

Referring more particularly to the drawings,the reference numeral 1designates av building element, for instance beams or concrete slabs, asin floor frame construction. For thepla'cement of a wooden floor oversuch,'a cement mass 2 and a strip or sleeper 3 are put in position. Thestrip 3 may be of wood or of composition, a preferred comppsition forsuch purpose comprising an oxychloride cement and a filler includingcellulosic'material. Magnesium oxychloride cement with sawdust,shavings, rice hulls, straw, or the like, to which can also be added.varying percentages Aof sand, crushed stone,

infusorial earth, cinders, etc., may be em,- ployed. While the cementmass 2 is yet soft, the series of strips orfsleepers 3 are brought todesired level, and the cement is allowed to set. This binds the strips 3lirmly to the under elements l, and a wooden flooring 4 may then benailed as usual to the sleepers 3.

hile inl some instances a bituminous composition may be used as thecement mass 2, or still less desirable Portland cement, I prefer anoxycement, oxysulphate, or ybetter, oxychloride. Portland cement adheresrather poorly to wood or the like, and can not be relied upon if thereis much Yof any separation stress to be encountered. The oxycements, andmore especially oxychloride, lgive a remarkably firm bond upon wood,metal,

articial or stone surfaces, and such elements may be satisfactorily heldto each other to withstand stresses, such that a wooden element may besheared within itself before the bond at the surface breaks. I thuscontemplate the joining of building elements variously, and particularlyWhere certain of these elements are of wood, by means of properlyapplied oxycement.

Instead of plain sided elements as in Fig. 1, I may also useconstruction elements -having dovetail undercuts (Fig. 2) or grooves,either rounded (Fig. 3) or square-section (Fig. 4) or inverted V-shape,('Fig.' 6), or modifications as desired. In Fig. 5 is shown a lockingtongue form.

Where is it desired to secure a carpet or the like over a cement orstone floor or the like, I may similarly apply a nailing strip 13 to theunder flooring 11. This nailing strip 13` may be'of wood, in which /caseit may be cemented to the concrete 11 by means of a thin layer of cementas above described, the oxychloride being somewhat preferable to theother compositions mentioned. Or instead of a wooden strip, maysimilarly cement a composition strip, the composition comprising anoXycement binder and a filler including cellulosic material. Or insteadof a preformed stripbeing cemented in place to the concrete or stonefloor,- I may cast such nailing strip in place, the compositionpreferably comprising an oxycement and a Eller including cellulosicmaterial being put in place either by troweling or by mold pieces placedfor the purpose. In either event, when the cement is set, filler pads,felts or the like l2 may be spread on the floor 11, within the nailingstrip 13 and the carpet 14 may then be secured by means of tacks 15driven into the nailing strip 13.

A further advantage where a nail-penetrable element, that is, penetrableto nails,

screws, tacks, etc., is secured to a supporting of Wood or ofcomposition as foregoing, may

be provided, being cemented to the concrete or structure 11a, and afterit is firm, a thin top coating 16 of cement is poured into place on themain oor area and brought to a level with the top of the strips. If thecomposition be used, the strip may be preformed or it may be cast inplace, as may be preferred. The carpet 17 may be laid as usual andtacked to the strip 13a.

Other modes of applying the principle of the invention may be employed,change being made as regards the details disclosed, r0- vided the meansor steps stated in any o the following' claims, or the equivalent ofsuch, be used.

I therefore particularly point out and distinctly claim as myinvention 1. In building construct-ion, a concrete subfloor element, asecondary element including a binder and a cellulosic filler pre-formedto self sustaining shape independently of said subfloor element, andmeans for securing said elements together Without mechanical keying,said means consisting of an Oxy-salt cement.

2. In building constructiom a concrete subfloor element, a secondarelement of oxychloride and a filler preormed to self sustaining shapeindependently of said subfloor element, and means for securing saidelements together Without mechanical keying, said means consisting ofanuoxychloride cement.

Signed by me this 20th day of January,

STANLEY H. BARRoWs.

